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System is the combination of organs to preform the certain biological functions. E.g., respiratory system, digestive system, .....

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Let, present age of Bibhu = x years And, present age of Bigyata = y years. Now according to question,   x + y = 35 ................ (i) Their present age difference = x - y. Now x - (x - y) = 2{y - (x - y)} or, x - x + y = 2( 2y - .....

a) The year 2066 was the best because in that year 90% students were passed which is higher than in other years .....

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—वाच्य परिवर्तन गर्दा कर्तामा ‘द्वारा वा बाट’ जोड्ने, —क्रियापदबाट धातु अलग गरी .....

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न्युटनले  जीवनमा धेरै मान, सम्मान र पुरस्कारहरु पाए जस्तै ब्रिटिस सरकारले सरको उपाधिबाट .....

दुई पिण्डबीचमा भएको आकर्षण बललाई गुरुत्वाकर्षण भनिन्छ  बढि द्रव्यमान भएको पदार्थको आकर्षण .....

सर आइज्याक न्युटन ( सन् १६४२ –१७२७) एक महान् वैज्ञानिक हुन् । न्युटन उच्च बौद्धिक क्षमता भएका .....

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We have given,  x2y / [ x - y] This expression will be undefined if denomerator is zero. i.e;  x - y = 0  or,  x = y. Hence, value of y must be .....

1. He asked if he had not understood what his father had said. 2.The news will please her.  3. will have completed 4. When did he go .....

1. hear   2. didn't she? 3. the  4.was going 5. off 6. broke 7. I am 8. because 9. excluded 10. had .....

Regarding this, the following things should be done: - The contributions made by the people in such days should be honoured and    respected. - The achievements made on such days should be highlighted through radios and   .....

Here, f(x) = 4x + rx Put x = 2 we get, f(2) = 4.2 + r.2 = 8 = 2r. Again,  Put x = 1 we get, f(1) = 4.1 + r.1  = 4 + r According to question,  Put x = 2 we get, f(2) = f(1)  or, 8 + 2r = 4 + r or, 2r - r  = 4 .....

Here, Range of function is 13. or, 13  = 7x - 8 or, 13 + 8 = 7x or, 21 = 7x or, x  = 21/7 = 3. Hence domain of function is .....

Here, Radius of circle  = r = 4 Circle touches - ve x-axis, so h =-r = - 4 and +ve y - axis, so k = r = 4. Finally, equation of circle is  (x -h)2 + ( y - k) 2 = r2 or,(x + 4 )2 + ( y - 4) 2 = 42 or, x 2 + 8x + 16 .....

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Solution: Here,  AX is bisector of ∡A So, ∡DAX = ∡ BAX = y ( say) ................i) Again, ∡DAX = ∡ BXA  ......................ii)[ alternate angles are equal.] So, ∡ BAX =  ∡ .....

The composition of gases present in air is shown in .....

Observation: The inflated balloon, i.e. the balloon  filled with air will pull down the stick. This is because of the weight of air. Hence, this experiment proves that air has .....